Relationship of Post Treatment Temperature and Tensile Strength for Selective Laser Sintering

Abstract:

Though SLS technology have got well development, the strength of the sintering prototype parts still need a lot of research. The lower strength of prototype parts mightl seriously affect the quality. The past research result shows that intensity of coated sand specimens of SLS sintering method is lower and cannot be used for metal casting, the sintered parts must be post-processed. In this study, author used the coated sand casting as the material of selective laser sintering experiment, studied the processing temperature and time on the mechanical properties of post-processing, and the influence on gas-forming property and collapsibility of the pieces. And combined with casting experimental to analyze the accuracy influence factors of precoated sand sintering parts and other performance assessment. Through the above analysis, we concluded that the influence law the post-processing of temperature on tensile strength of coated sand specimens under three different insulation temperature conditions.

• Periodical: Applied Mechanics and Materials (Volumes 155-156)
• Pages: 872-876
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.155-156.872
• Online since: February 2012
• Authors: Jun Su, Xiao Jing Li, Pei Xin Qu
• Keywords: Post Treatment, Selective Laser Sintering, Tensile Strength

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